CHOWDHURY, Md Sazzad Hossien; HOSEN, Md. Alal; ALI, MOHAMMAD YEAKUB; ISMAIL, AHMAD FARIS. An analytical technique to obtain higher-order approximate periods for nonlinear oscillator. IIUM Engineering Journal, [S. l.], v. 19, n. 2, p. 182–191, 2018. DOI: 10.31436/iiumej.v19i2.943. Disponível em: https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/943. Acesso em: 16 apr. 2024.